"Evaluating Noise in GNSS Time Series

June 13, 2024  |  2:00-3:00 pm, ET

Presenter: Jordan Krcmaric, Geodesist, Geosciences Research Division, NGS

Global Navigation Satellite Systems (GNSS) coordinate time series provide a critical dataset for scientific, engineering and surveying applications. Station velocity estimates from GNSS time series are the backbone of defining stable global and regional reference frames that enable high precision positioning. Noise in the GNSS time series degrades the position observations and increases the uncertainty in the station velocity estimates. The source of the noise can be related to the instrument and processing strategies used, or can be from environmental sources such as the atmosphere and hydrological effects. This webinar will provide an overview of the types of noise present in GNSS time series and its effect on the velocity estimation. There will also be a discussion on the potential sources of noise, using GNSS time series in the Great Lakes region as an example of the effect of atmospheric and hydrological related noise.